I just made a quick SCI for Urban Chaos. It requires a full install of original or gold JA2, then just install into that folder like the normal SCI for 1.13. It comes prepacked with Tiger's Pink Skin mod and the Quick Fix 2 to prevent crashes and abnormalities. However I couldn't find the fixed map pack. If someone can point me in the right direction I'll redo it

Been a long time since I last visited the website (yeah i know shame on me). So I bought JA2 on steam because I missed playing the game. I never played UC so my question is do I need to install 1.13 first or does the Single Click INSTALLER (SCI) INSTALL UC & 1,13 altogether? Its been years since I played 1.13 and this is a different pc.

Haven't been able to get it to work. I dug out an old pc I havent used in years that has a older version of 1.13 on it. I think build v2905 or something like that. Anyway been getting my JA fix that way. Not UC but better than nothing.

Disclaimer:
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This is unofficial modpack for 1.13 7609.
Mods in this modpack are not supported by original authors, don't post bugreports in official threads, don't ask mod authors for support.
This modpack in unofficial, use at you own risk.
If you can, better install 1.13 and mods from official download location.
I cannot provide support for mods in this modpacks, if you want support, use official versions of 1.13 and mods.
Some mods have been changed - official and unofficial bugfixes applied, balance ini/xml tweaks, compatibility changes.

How to install:
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1. Make a clean install of vanilla Jagged Alliance 2
2. Unpack 7609en+Modpack.7z into game folder
3. Select mod from Ja2.ini or use INI Editor to select mod and screen resolution
4. Run Ja2.exe or Ja2+fix.exe or Ja2+AI.exe

Notes:
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1. Don't install into Program Files or any other system protected folder
2. When using Win8+, apply registry patch
3. This modpack is for playing, not for modding. It may be not easy to change files without modding knowledge.
4. XML Editor can be used to vew data for stock 1.13, SDO, AFS and IoV mods. It's not recommended to save changes using XML Editor as it may corrupt XML data.
5. You can find more information on 1.13 and mods in Docs folder

Data-User folder:
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It is applied to all mods and used last before the profile folder, it's good place to store your settings that you want to apply to all mods.

maybe you should try the modpack for 1.13 7609 by DanielS (including Urban Chaos 4.5):

Who is that DanielS? It's my unofficial 7609 modpack, see link in the sig.
UC 4.5 in modpack should work fine though I never personally fully tested it. It's the copy from official download link with only additional options/content in Data-User folder (common for all mods in modpack).